Question

Va rog, ajutati-ma la matematica

Answer 1

Răspuns:

Explicație pas cu pas:

(1,5-0,5)·3-2·0,5 = 1·3-1 = 3-1 = 2

5-3(1+1/3) = 5-3·(4/3) = 5-4 = 1

(√8+1)(2√2-1)-√36 = (2√2+1)(2√2-1)-6 = 4·2-1-6 = 8-7 = 1

1/3 ·(1-2/5)+4/5 = 1/3 ·3/5 + 4/5 = 1/5 + 4/5 = 1

2·(2-3/4 :1/2) = 2·(2- 3/4 · 2/1) = 2·(2-6/4) = 2·(2-3/2) = 2·1/2 = 1

(0,25·10-1/2)(0,25·10+1/2) = (2,5-0,5)(2,5+0,5) = 2·3 = 6

(10-2·3)(10+2·3) = (10-6)(10+6) = 4·16 = 64

√5·(1+2√5)-√5 = √5+2·5-√5 = 2·5 = 10

(10+1/2)(10-1/2) = 100 - 1/4 = (400-1)/4 = 399/4

√3(2√3+1)-√3 = 2·3+√3-√3 = 6

6√3+2(1-√27) = 6√3+2-2·3√3 = 2

√7·(√7+1)-√7 = 7+√7-√7 = 7

(³⁾3/2-²⁾2/3):(³⁾3/2+²⁾2/3)·13/5 = (9-4)/6 : [(9+4)/6]·13/5 =

= 5/6 · 6/13 ·13/5 = (5·6·13)/(6·13·5) = 1

(¹²⁾1-⁴⁾1/3+³⁾1/4):(¹²⁾1-1/12) = (12-4+3)/12 : (12-1)/12 = 11/12 : 11/12 = 1